Category: Utilities

When running apps on a docker swarm sometimes we know from the monitoring/alerting system just a container hostname, but measures should be taken on the host. For example, free up some disk space. I’ve struggled to find a way to find it out in an easy way, but haven’t succeeded. So, I came up with…

The convenient pdf manipulation tool pdftk is not available in Ubuntu 18.04 repositories because of some licensing incompatibilities. Using some docker magic and a small script we’ll use it as in previous Ubuntu releases, since it’s still available in 16.04 repositories. Here we will exploit the docker capabilities to run the pdftk binaries in the…

Trying to understand what’s happening inside your code running in multiple docker-compose containers by reading logs could be a terrible idea if log lines are outputted in a random manner. Which is true at least for docker-compose version 1.8.0, build 94f7016. This could be simply checked by running the following command several times. 1docker-compose logs|head Here…